I wonder if a different type of solar panel might explain
the ones flaring three hours before shadow entry. Here's an
illustration of one of the XM Radio satellites that shows the
three-sided shape (three sides of a trapezoid) of the panels:
http://www.hsc.com/hsc_pressreleases/photogallery/xm1/xm1c.html
I don't have any idea which other ones might have that type
of panels.
What you are see in in addition to the solar cell, is the angled solar
reflector panels which concentrate the suns rays on the solar cells. It is
stardard on the Boeing HS702 series of spacecraft.
It is found on the following sats in orbit.
Anik F1
Galaxy XI
PAS-1R.
XM-Rock
XM-Roll
Kevin
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